function Map(el){
    this.el = el
    this.el.width=800
    this.el.height=400

}
Map.prototype.create = function(){
    this.el.style.width =  this.el.width + 'px'
    this.el.style.height = this.el.height +  'px'
    this.el.style.background = `url(./bg.png)`
    this.el.style.border= '10px solid green'
    this.el.style.position = 'relative'

}